Nathaniel “Nathan” R. Bossick, LCSW, is a compassionate and visionary Clinical Social Worker with over 15 years of experience supporting individuals facing homelessness, substance use disorders, and complex life crises. As the Founder and Executive Director of Rainbow Health, Nathaniel brings a trauma-informed, culturally grounded approach to social work practice, grounded in both professional expertise and deep community engagement.

Nathan is known for his unwavering commitment to equity, client-centered care, and systems change. His work centers the voices and needs of the most vulnerable, with a focus on creating safe, affirming spaces where individuals can access comprehensive behavioral health support and rebuild their lives with dignity.

Throughout his career, Nathaniel has been recognized for his leadership and innovation in the field, including being named Emerging Leader of the Year by the Illinois Chapter of the National Association of Social Workers and a 40 Under 40 honoree by The New Orleans Gambit. His work continues to shape policy, inspire service models, and expand access to care across Hawai‘i and beyond.